ReGui comes with built-in accent colors that can be used for coloring. As seen in the source
ReGui.Accent = {
--// ReGui acent colors
Light = Color3.fromRGB(60, 150, 250),
Dark = Color3.fromRGB(29, 66, 115),
White = Color3.fromRGB(240, 240, 240),
Gray = Color3.fromRGB(127, 126, 129),
Black = Color3.fromRGB(15, 19, 24),
Yellow = Color3.fromRGB(217, 180, 62),
Orange = Color3.fromRGB(234, 157, 57),
Green = Color3.fromRGB(130, 188, 91),
Red = Color3.fromRGB(255, 69, 69),
ReGui:DefineTheme("Pink Theme", {
Text = Color3.fromRGB(200, 180, 200),
WindowBg = Color3.fromRGB(35, 30, 35),
TitleBarBg = Color3.fromRGB(35, 30, 35),
TitleBarBgActive = Color3.fromRGB(50, 45, 50),
Border = Color3.fromRGB(50, 45, 50),
ResizeGrab = Color3.fromRGB(50, 45, 50),
})
local Window = ReGui:Window({
Title = "My theme demo",
Theme = "Pink Theme",
Size = UDim2.fromOffset(300, 200)
})
Window:Label({
Text = "Hello, world!"
})